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Basket Analysis with #dax in #powerpivot and #ssas #tabular
A few days ago I published a new article on DAX Patterns web site describing how to implement Basket Analysis in DAX. This topic is a very classical one and is also covered in the many-to-many...
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Calculate New, Returning, Lost, and Recovered Customers in #dax
Calculating the number of new and returning customers is a recurring question. I would say this is a “classical” Business Intelligence problem, very common in marketing department. I worked on these...
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Calculate the rolling average for 12 months in #DAX and a nice IF optimization
Alberto published the Rolling 12 Months Average in DAX article on SQLBI a few days ago, which includes interesting consideration about how to avoid the pitfall of touching the boundaries of the Date...
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Learn #tabular and #dax at PASS Summit 2014
During the last months I’ve seen an increasing adoption of Analysis Services Tabular (and I’m writing a longer article about a particular area of adoption which was probably not expected – more on that...
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Use of RANKX with decimal numbers in DAX #powerpivot #ssas #tabular
Using decimal numbers in Power Pivot and Tabular might produce small rounding differences in certain calculations. This is nothing new when you work with floating point, as many programmer knows. The...
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Issues with July 2014 Office Update and Click-to-Run #excel #powerbi
An interesting experience with Office Click-to-Run is that trusting it to install updates the night before a conference where you are a speaker. I’m writing this blog post while Alberto Ferrari is...
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DIVIDE vs division operator in #dax
Alberto Ferrari wrote an interesting article about DIVIDE performance in DAX. This new function has been introduced in SQL Server Analysis Services 2012 SP1, so it is available also in Excel 2013...
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New training on Power Pivot with recorded video courses
I and Alberto Ferrari started delivering training on Power Pivot in 2010, initially in classrooms and then also online. We also recorded videos for Project Botticelli, where you can find content about...
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Possible SWITCH Optimization in DAX – #powerpivot #dax #tabular
In one of the Advanced DAX Workshop I taught this year, I had an interesting discussion about how to optimize a SWITCH statement (which could be frequently used checking a slicer, like in the Parameter...
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Embed Analysis Services Tabular in your service or application #ssas #tabular
Since 2012 I have seen many companies adopting SQL Server Analysis Services Tabular as the analytical engine for their product or service. I think that this is still a fraction of the companies that...
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MDX Studio refresh
If you work with MDX, using MDX Studio is a must, but it has not been updated for years. But community is great and Ihor Bobak has been able to apply two fixes: performance counters work with named...
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Simulate the SQL WHERE condition in DAX–#dax #powerpivot #ssas
I recently wrote a short article about filtering data in DAX. In the last month I’ve seen a growing number of people with a SQL background going to Tabular, without having a previous experience of MDX....
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Advanced DAX Workshops in the upcoming months –#dax #tabular #powerpivot
The adoption of DAX is slowly growing and we can see that from comments to article, blog posts, web site traffic (including DAX Formatter usage). For this reason, the demand for more advanced training...
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Questions and Answers about SSAS Tabular Models #ssas #tabular
I recently delivered the online session Create your first SSAS Tabular Model at 24HOP Pass Summit, which recording is now available here. I received many questions and did not have enough time, so I...
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A strange behavior of AutoExist for MDX on Tabular models #powerpivot #ssas...
Alberto Ferrari wrote an interesting article about a strange behavior of AutoExist in normalized data models. I always say that a star schema is the best practice in Power Pivot and Tabular data...
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The state of Multidimensional and Tabular adoption
SQL Server Analysis Services is a product that does not have its own product code, being sold as part of SQL Server. I think that also Microsoft does not know (and cannot know) the exact number of...
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Power Query support for Analysis Services (MDX)
Today at TechEd Europe 2014 Miguel Llopis made the first public show of Power Query support for Analysis Services.This is still not available, but it should be released soon (hopefully it will be our...
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BI Announcements at PASS Summit 2014 #sqlpass #powerbi #powerpivot
This morning the PASS Summit 2014 started in Seattle and during the keynote there was several announcements from Microsoft. I’m considering here only the ones about Business Intelligence (you will find...
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Don’t use SUMMARIZE to sum your data–or just be careful #dax #ssas #powerpivot
During the last PASS Summit I and Alberto Ferrari had long discussions at SQL Clinic with some of the developers of our loved tools. Sometime you really have to dig in the internals of certain feature...
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What are useful tools and resources for DAX developers? #dax #powerpivot...
At the last PASS Summit I received an interesting question: is there a list of all the useful (I would say necessary…) tools for DAX developers? My answer was… “no, but this is an interesting topic for...
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